Magnetic properties of LaMnO3+δ nanocrystals in MCM-41 mesoporous silica

H. Kira; H. Tamura; Y. Ando; M. Onodera; H. Nakao; Y. Murakami; K. Tsuda; K. Ohoyama; S. Yamazaki; T. Tajiri; H. Deguchi

doi:10.1016/j.jmmm.2006.11.021

Magnetic properties of LaMnO_3+δ nanocrystals in MCM-41 mesoporous silica

H. Kira, H. Tamura, Y. Ando, M. Onodera, H. Nakao, Y. Murakami, K. Tsuda, K. Ohoyama, S. Yamazaki, T. Tajiri, H. Deguchi

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

The LaMnO_3+δ crystal has successfully been synthesized in a mesoporous silica MCM-41 by an improvement in the impregnation method. X-ray diffraction measurement has revealed that the crystal has a rhombohedral structure and the average particle size is about 9.5 nm. Ferromagnetic behavior with a hysteresis of the magnetization curve was observed below T=280 K; however, the magnetization is not saturated up to H=7 T at T=5 K. These results suggest that ferromagnetic and antiferromagnetic regions coexist in the sample.

Original language	English
Pages (from-to)	2480-2482
Number of pages	3
Journal	Journal of Magnetism and Magnetic Materials
Volume	310
Issue number	2 SUPPL. PART 3
DOIs	https://doi.org/10.1016/j.jmmm.2006.11.021
Publication status	Published - 2007 Mar

Keywords

Lanthanum manganite
Magnetic property
Nanocrystal
X-ray diffraction

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

Access to Document

10.1016/j.jmmm.2006.11.021

Cite this

Magnetic properties of LaMnO_3+δ nanocrystals in MCM-41 mesoporous silica. / Kira, H.; Tamura, H.; Ando, Y.; Onodera, M.; Nakao, H.; Murakami, Y.; Tsuda, K.; Ohoyama, K.; Yamazaki, S.; Tajiri, T.; Deguchi, H.

In: Journal of Magnetism and Magnetic Materials, Vol. 310, No. 2 SUPPL. PART 3, 03.2007, p. 2480-2482.

Research output: Contribution to journal › Article › peer-review

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title = "Magnetic properties of LaMnO3+δ nanocrystals in MCM-41 mesoporous silica",

abstract = "The LaMnO3+δ crystal has successfully been synthesized in a mesoporous silica MCM-41 by an improvement in the impregnation method. X-ray diffraction measurement has revealed that the crystal has a rhombohedral structure and the average particle size is about 9.5 nm. Ferromagnetic behavior with a hysteresis of the magnetization curve was observed below T=280 K; however, the magnetization is not saturated up to H=7 T at T=5 K. These results suggest that ferromagnetic and antiferromagnetic regions coexist in the sample.",

keywords = "Lanthanum manganite, Magnetic property, Nanocrystal, X-ray diffraction",

author = "H. Kira and H. Tamura and Y. Ando and M. Onodera and H. Nakao and Y. Murakami and K. Tsuda and K. Ohoyama and S. Yamazaki and T. Tajiri and H. Deguchi",

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AU - Kira, H.

AU - Tamura, H.

AU - Ando, Y.

AU - Onodera, M.

AU - Nakao, H.

AU - Murakami, Y.

AU - Tsuda, K.

AU - Ohoyama, K.

AU - Yamazaki, S.

AU - Tajiri, T.

AU - Deguchi, H.

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AB - The LaMnO3+δ crystal has successfully been synthesized in a mesoporous silica MCM-41 by an improvement in the impregnation method. X-ray diffraction measurement has revealed that the crystal has a rhombohedral structure and the average particle size is about 9.5 nm. Ferromagnetic behavior with a hysteresis of the magnetization curve was observed below T=280 K; however, the magnetization is not saturated up to H=7 T at T=5 K. These results suggest that ferromagnetic and antiferromagnetic regions coexist in the sample.

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KW - X-ray diffraction

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